a sync hack I did once, ( since fons sync plugin is cpu-heavy for small arm computers): open case and solder out one quartz (oscillator) of one and make a cable to the second boards quartz, so they are in sync and combine them under alsa.
Since audio quality is not the best if powering over ComputerUSB, another hack: cut the USB power and make a filtered 5V one or add additional filters. but this is a hack... not a standard solution. mfg winfried Am Freitag, 6. Mai 2016, 10:27:29 schrieb Miller Puckette: > On caveat: you probably can't sync these together, so you will occasionally > get an audio error on output as Pd 'resyncs' them. There are various > ways of working around this. Maybe the best way in your particular > situation is to have two copies of Pd and use netsend/receive to sync them > at message level. If you do this in short segments (< 10 minutes or so) > the time slippage shouldn't exceed what you get anyhow because of speaker > placement. > > cheers > Miller > > On Fri, May 06, 2016 at 05:07:06PM +0200, Peter Venus wrote: > > well, > > if it should be on the cheap side, > > and the need for usb because of a lacking pcmcia/expresscard is present, > > there there are > > logilink ua0099 available, which are offering 8ch output > > for 23euros > > i bought some here: > > http://www.pollin.de/shop/dt/MDUyODcyOTk-/Computer_Informationstechnik/USB > > _Technik/USB_Konverter/7_1_Kanal_USB_2_0_Soundbox_LogiLink_UA0099.html > > > > > > cheers, > > peter > > > > On 2016-05-06 14:54, patrice colet wrote: > > > If it's just about having 16 channels DAC, using two C-media CM6206 > > > > > >soundcards should be enough but you might need direct input boxes if the > > >amplifiers are not just beside the computer, I tried this chipset and it > > >works good on a pcduino2 and Pd with 8 channels, no glitches, it should > > >works as well on a Raspberry Pi 3. So it's possible to cluster the > > >soundcard+pi on a network and have as much channels as you need. > > > > > >e 06/05/2016 à 14:32, Simon Iten a écrit : > > >>or get yourself an old rme multiface hdsp card, eight analog outputs and > > >>eight adat… you will need an old laptop with pcmcia or a new one with > > >>express card (or a macbook with thunderbolt and an adatper) > > >> > > >>rme cards are good quality and quite cheaply secondhand (200 $) > > >> > > >>>On 06 May 2016, at 14:08, William Huston <williamahus...@gmail.com> > > >>>wrote: > > >>> > > >>>The Motu is $1000. The Presonus is $500. What about getting 8x > > >>>2-channel USB soundcards? The Griffin iMic is a 2x2 and is $40. So 8x > > >>>would be $320. > > >>> > > >>>If you look around, you can find 2ch USB audio adapters for $20/each, > > >>>$10/each, even $2/each. For that kind of money you could purchase a > > >>>few and evaluate them in terms of quality, or maybe read up on what > > >>>chip they use and read reviews. > > >>> > > >>>I'm pretty sure Pd supports multiple audio adapters, but have not > > >>>tested this. > > >>> > > >>>Please post your results, as I would like to get into ambisonics as > > >>>well and be able to drive 8x or more speakers. But I don't want to > > >>>spend $1000! > > >>> > > >>>On Thursday, May 5, 2016, Jack <j...@rybn.org> wrote: > > >>>> Hello, > > >>>> > > >>>> With the following configuration : > > >>>> Ubuntu 16.04 > > >>>> Pd-0.47.0 > > >>>> > > >>>> I need to find a solution to send sounds on 16 different speakers. > > >>>> What is your advice regarding the purchase of USB sound cards under > > >>>> Linux with this configuration ? For you, which sound cards are more > > >>>> willing to do this job ? > > >>>> > > >>>> Ciao. > > >>>> ++ > > >>>> > > >>>> Jack > > >>>> > > >>>> > > >>>> _______________________________________________ > > >>>> Pd-list@lists.iem.at <mailto:Pd-list@lists.iem.at> mailing list > > >>>> UNSUBSCRIBE and account-management -> > > >>> > > >>>https://lists.puredata.info/listinfo/pd-list > > >> > > >>_______________________________________________ > > >>Pd-list@lists.iem.at mailing list > > >>UNSUBSCRIBE and account-management > > >>->https://lists.puredata.info/listinfo/pd-list> > > > >_______________________________________________ > > >Pd-list@lists.iem.at mailing list > > >UNSUBSCRIBE and account-management -> > > >https://lists.puredata.info/listinfo/pd-list> > > _______________________________________________ > > Pd-list@lists.iem.at mailing list > > UNSUBSCRIBE and account-management -> > > https://lists.puredata.info/listinfo/pd-list > _______________________________________________ > Pd-list@lists.iem.at mailing list > UNSUBSCRIBE and account-management -> > https://lists.puredata.info/listinfo/pd-list -- -- - ao.Univ.Prof. DI Winfried Ritsch - rit...@iem.at - http://iem.at/ritsch - Institut of Elektronic Music and Acoustics - University of Music and Dramatic Art Graz - Tel. ++43-316-389-3510 (3170) Fax ++43-316-389-3171 -- _______________________________________________ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list